The HADES Team

HADES team talking at CDR

Two groups in one project

The HADES Team is composed of students from the University of Applied Sciences Western Switzerland (HES-SO). The group, composed of 8 members, is divided into two geographically disctinct locations : Fribourg and Geneva.

The Fribourg team handles the electronics and regulation, and the Geneva team is in charge of the mechanical side of things as well as the aerodynamics of the capsule.

Diverse backgrounds forming a stronger team

The HES-SO (our university) requires every student to have a previous work experience in an engineering field before starting their Bachelor degree. This means every member of our team has worked previously in various fields, such as railway engineering, automation, energy production and even space business. This gives us a multidisciplinary approach to the project.

The Geneva Team :

- Mathias Widmer

BSc in mechanical engineering

As the Team Leader, Mathias is in charge of the external communication with the REXUS / BEXUS organisation, as well as with our partners. He is also handling the team’s schedule and the division of tasks between Fribourg and Geneva.

Moreover, Mathias is responsible of the Mechanical Engineering for the HADES experiment and the design of the experiment on CAD (Computer Aided Design) software.

- Aurélien Walpen

BSc in mechanical engineering

Aurélien is in charge of the documentation of the project, which involves writing documents explaining to the different experts within the REXUS / BEXUS programme everything there is to be known about our experiment. He is also in charge of the outreach programme, maintaining the website and Instagram account, as well as organising conferences and events for our partners.

Aurélien is also leading the Launch Campaign Operations, which means dealing with everything needed for a successful flight and recovery of the capsule.

- Jean-Philippe Kuntzer

BSc in mechanical engineering

Jean-Philippe’s responsability in the team lies in the simulations of the mechanical parts. He is in charge of the Finite Elements Analyses (FEA) which ensures that our experiment will be able to sustain the forces endured during launch. Moreover, he is also doing all the Topology Optimization (TO) which helps the experiment being as lightweight as possible without compromising structural integrity.

Jean-Philippe is also in charge of the crash test of the capsule, guaranteeing that we will be able to recover the data after landing.

- Ruiliang Lin

BSc in microengineering

Ruiliang is responsible of the HADES Capsule. His work consist of making sure every component will fit nicely inside our capsule and that the mass and inertia will be in accordance to our calculations.

He is also in charge of all the stratification process for the capsule’s aramid shell. This means making the moulds, choosing the fiber orientation, the resin, etc.

The Fribourg Team :

- Loïc Murith

MSc in embedded system

Loïc’s role in HADES is to design all the electronic boards that will sit inside our experiment. He is also in charge of all the various sensors, motors, batteries and microcontrollers that are used inside the capsule.

Moreover, Loïc has the responsability of cabling the whole experiment together, making sure the various elements will be connected in a secure way.

- Maxime Charrière

MSc in embedded system

Maxime is in charge of the Software Design. His role is to write all the code that will pilot the experiment during the whole flight. Indeed, our experiment will be totally autonomous during the mission, which means the microcontroller has to take decisions by itself during the flight and do certain tasks at a precise moment without being told to.

Maxime is also responsible of the software redundancy. To minimize the risk of failure, all the important electronic equipment (microcontroller, sensors, …) are doubled. But this means that the microcontroller has to know when one sensor is behaving abnormally and has to effectively decide to ignore its input and trust the twin sensor instead.

- Celso Cippà

BSc in electronical engineering

Celso’s role is to design the Control System. Our main objective is to damp the capsule’s oscillations during re-entry. This is achieved by a control loop (PID) which moves masses inside the capsule in opposite way to the oscillations.

Celso has to program the microcontroller to move the weights at a certain rate depending on the capsule’s angle to ensure the oscillations will be damped and not amplified.

- Samuel Rieder

BSc in electronical engineering

The main task Samuel has to accomplish during the project is to ensure a proper communication between our capsule and the ground. During the countdown and the first phase of the flight, the capsule will communicate its status with the ground station via the rocket’s downlink system. After the capsule’s ejection, an Iridium transmitter will be used to communicate its position during the descent.

Samuel is also in charge of the capsule’s recovery, which will be done using the Iridium position and a short range RECCO rescue system.